Sökning: "Johanna Olsson"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden Johanna Olsson.

  1. 1. Fractionation of hardwood using steam explosion and hydrotropic extraction : Process development for improved fractionation

    Författare :Johanna Olsson; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydrotropic fractionation; ; Steam explosion; hardwood; sodium xylene sulphonate; Lignocellulosic Biomass; Hydrotropic extraction; Steam explosion; Hardwood; Sodium xylene sulphonate; Lignocellulosic biomass;

    Sammanfattning : The utilisation of biomass instead of fossil resources is an important alternative for the transition into a sustainable society. Biomass, owing to its primary constituents—cellulose, hemicelluloses and lignin—has the potential to replace many products that are produced from fossil resources today, including plastics, textile fibres and fuels. LÄS MER

  3. 2. Fuel dispersion and bubble flow distribution in fluidized beds

    Författare :Johanna Olsson; Högskolan i Borås; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fluidised bed; fuel mixing; bubble distribution; digital image analysis; particle tracking; Energi och material; Resource Recovery; Resursåtervinning;

    Sammanfattning : Fluidized bed technology is used for thermal conversion of solid fuels (combustion and gasification) and is especially suitable for conversion of low-rank fuels such as biomass and waste. The performance of fluidized bed units depends on the fuel mixing and fuel-gas contact. LÄS MER

  4. 3. Fuel dispersion and bubble distribution in fluidized beds

    Författare :Johanna Olsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Fluidized bed technology is used for thermal conversion of solid fuels (combustion and gasification) and is especially suitable for conversion of low-rank fuels such as biomass and waste. The performance of fluidized bed units depends on the fuel mixing and fuel-gas contact. LÄS MER

  5. 4. A Systems View of Advancements in Biomass Supply Chains

    Författare :Johanna Enström; Aron Larsson; Leif Olsson; Lars Eliasson; Anders Eriksson; Daniel Nilsson; Mittuniversitetet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Forestry logistics; Supply Chain Management; Discrete Event Simulation; Forest fuel;

    Sammanfattning : Forest fuel is an important source of energy with potential for increased use in the Nordic countries. Profitable forest operations are dependent on logistics as the forest is a natural resource with varying conditions over widespread areas. LÄS MER

  7. 5. Setting Limits in Nature and the Metabolism of Knowledge : The Case of the Critical Load Concept

    Författare :Johanna Alkan Olsson; Gunilla Öberg; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Föroreningsfrågor; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

    Sammanfattning : In the 1980s, the earlier understanding that environmental problems are relatively simple was questioned. In order to handle the perceived complexity, several responses emerged. LÄS MER